Blastoderms in eggs

I'm not sure if this is the right sub-forum for this, but it is related to eggs! I have a bantam rooster and a regular sized rooster. The regular sized roo is new to us, we got him about 3-4 weeks ago. I am hoping to hatch out some of the new roo's babies. It's pretty much impossible to be able to tell which roo did the job, but then I got to wondering if the blastoderm (bull's eye) would be larger if it was the regular roo's and smaller if it's the bantam roo's.. What's your take on this? I wondered this because it seems like a lot of the eggs have bigger blastoderms now?

 

Thank you! I know how to tell a fertile egg from an infertile egg. I was just curious if the size of the blastoderm on the egg would have any correlation to the size of the roo, or if it would be relatively similar, no matter the breed size. Kind of similar to how different breeds of hens can lay different sized eggs. IE: bantam hens lay smaller eggs than Buff Orpingtons.